New technique for determining the critical loads of a thin coating on a tool–steel substrate by considering the initiation of cracks in the coating

Jiling Feng, Yi Qin, Rejin Raghavan, J Michler, E. Almandoz, G.G. Fuentes

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this article, a mathematical algorithm is derived to accurately determine the critical load of indentation for the initiation of cracks on the surface of a hard coating on a soft substrate, based on the measurement of the diameter of circumferentialcracks in micro-indentation impressions. The critical load required for the initiation of the first crack predicted using this technique is shown to be in good agreement with experimental results, indicating the feasibility of the technique proposed. The rationality of the approach proposed was further explored by investigating the fracture mechanism of the surface in a multilayer-coated surface using a finite element model, which was developed with the parameterised modelling approach, in combination with the cohesive-zone model.
LanguageEnglish
Pages1205-1212
Number of pages8
JournalProceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
Volume226
Issue number7
Early online date26 Apr 2012
DOIs
Publication statusPublished - Jul 2012

Fingerprint

Tool steel
Cracks
Indentation
Coatings
Substrates
Hard coatings
Multilayers

Keywords

  • critical load
  • fracture
  • indentation test
  • coating surface
  • new technique
  • thin coating
  • tool-steel substrate
  • initiation of cracks
  • coating

Cite this

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title = "New technique for determining the critical loads of a thin coating on a tool–steel substrate by considering the initiation of cracks in the coating",
abstract = "In this article, a mathematical algorithm is derived to accurately determine the critical load of indentation for the initiation of cracks on the surface of a hard coating on a soft substrate, based on the measurement of the diameter of circumferentialcracks in micro-indentation impressions. The critical load required for the initiation of the first crack predicted using this technique is shown to be in good agreement with experimental results, indicating the feasibility of the technique proposed. The rationality of the approach proposed was further explored by investigating the fracture mechanism of the surface in a multilayer-coated surface using a finite element model, which was developed with the parameterised modelling approach, in combination with the cohesive-zone model.",
keywords = "critical load, fracture, indentation test, coating surface, new technique, thin coating, tool-steel substrate, initiation of cracks, coating",
author = "Jiling Feng and Yi Qin and Rejin Raghavan and J Michler and E. Almandoz and G.G. Fuentes",
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T1 - New technique for determining the critical loads of a thin coating on a tool–steel substrate by considering the initiation of cracks in the coating

AU - Feng, Jiling

AU - Qin, Yi

AU - Raghavan, Rejin

AU - Michler, J

AU - Almandoz, E.

AU - Fuentes, G.G.

PY - 2012/7

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N2 - In this article, a mathematical algorithm is derived to accurately determine the critical load of indentation for the initiation of cracks on the surface of a hard coating on a soft substrate, based on the measurement of the diameter of circumferentialcracks in micro-indentation impressions. The critical load required for the initiation of the first crack predicted using this technique is shown to be in good agreement with experimental results, indicating the feasibility of the technique proposed. The rationality of the approach proposed was further explored by investigating the fracture mechanism of the surface in a multilayer-coated surface using a finite element model, which was developed with the parameterised modelling approach, in combination with the cohesive-zone model.

AB - In this article, a mathematical algorithm is derived to accurately determine the critical load of indentation for the initiation of cracks on the surface of a hard coating on a soft substrate, based on the measurement of the diameter of circumferentialcracks in micro-indentation impressions. The critical load required for the initiation of the first crack predicted using this technique is shown to be in good agreement with experimental results, indicating the feasibility of the technique proposed. The rationality of the approach proposed was further explored by investigating the fracture mechanism of the surface in a multilayer-coated surface using a finite element model, which was developed with the parameterised modelling approach, in combination with the cohesive-zone model.

KW - critical load

KW - fracture

KW - indentation test

KW - coating surface

KW - new technique

KW - thin coating

KW - tool-steel substrate

KW - initiation of cracks

KW - coating

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M3 - Article

VL - 226

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EP - 1212

JO - Proceedings for Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture

T2 - Proceedings for Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture

JF - Proceedings for Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture

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